hands-on lab

Troubleshooting Kubernetes: Cluster Access Issues

Up to 30m
Get guided in a real environmentPractice with a step-by-step scenario in a real, provisioned environment.
Learn and validateUse validations to check your solutions every step of the way.
See resultsTrack your knowledge and monitor your progress.


Access issues are inevitable when running large clusters. This Lab teaches you how to detect, diagnose, and remedy cluster access issues. You will use tools included in Kubernetes, such as kubectl, as well as a variety of Linux operating system tools like scp, grep, and openssl to build a comprehensive Kubernetes troubleshooting toolkit. In addition to reacting to issues, the Lab points out some ways that you can proactively reduce the chance of failures when working with Kubernetes.

This Lab is valuable to anyone working with Kubernetes, but the content has been prepared considering topics described in the Certified Kubernetes Administrator (CKA) Exam Curriculum. Completion of the Lab will help you get hands-on experience, which is essential for passing the CKA exam.

Lab Objectives

Upon completion of this Lab, you will be able to:

  • Troubleshoot Kubernetes connection failures

Lab Prerequisites

You should be familiar with:

  • Working with kubectl
  • Working at the command line in Linux


October 12th, 2023 - Updated Kubernetes version

June 8th, 2023 - Updated Kubernetes version

Environment before

Environment after

About the author

Daniel Wood, opens in a new tab
Lab Operations Engineer

Daniel is a Cloud Engineer with experience as an AWS Engineer and Operations Specialist. He holds the AWS DevOps Engineer Professional, AWS Developer Associate, AWS SysOps Administrator Associate, Certified Kubernetes Administrator, Microsoft Certified: Azure Administrator Associate, and HashiCorp Certified: Terraform Associate certifications. Daniel is focused on lab operations and enjoys continuously building his knowledge.

Covered topics

Lab steps

Connecting to the K8s Cluster
Troubleshooting Kubernetes Cluster Access Issues